May weather forecastSouth Bristol, ME
May
Weather in May
May, the last month of the spring in South Bristol, is a mild month, with an average temperature fluctuating between 45.5°F (7.5°C) and 59.4°F (15.2°C).Temperature
In South Bristol, the average high-temperature in May increases from a chilly 49.1°F (9.5°C) in April to a mild 59.4°F (15.2°C). Throughout May, South Bristol anticipates an average low-temperature of 45.5°F (7.5°C).Humidity
The average relative humidity in May in South Bristol is 80%.Rainfall
In South Bristol, in May, it is raining for 14.9 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, in South Bristol, there are 142.1 rainfall days, and 30.51" (775mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall in South Bristol. May is the last month it regularly snows. During 0.1 snowfall days, in May, South Bristol aggregates 0.16" (4mm) of snow. In South Bristol, during the entire year, snow falls for 40 days and aggregates up to 20.08" (510mm) of snow.Daylight
The average length of the day in May in South Bristol is 14h and 46min.On the first day of May, sunrise is at 5:28 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 4:58 am and sunset at 8:13 pm EDT.
Sunshine
The average sunshine in May is 8h.UV index
In South Bristol, Maine, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 4 during May translates into the following directions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
South Bristol, ME
- Average high temperature in May: 59.4°F
The warmest months (with the highest average high temperature) are July and August (74.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in May: 45.5°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in May
South Bristol, ME
- Average pressure in May: 29.99"Hg
The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
South Bristol, ME
- Average wind speed in May: 8.1mph
The windiest months (with the highest average wind speed) are January and March (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in May
South Bristol, ME
- Average humidity in May: 80%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (76%).
Average rainfall in May
South Bristol, ME
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in May
South Bristol, ME
- Average rainfall days in May: 14.9 days
The month with the highest number of rainy days is April (15.1 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in May
South Bristol, ME
- Average snowfall in May: 0.16"
The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
South Bristol, ME
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
South Bristol, ME
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days in May
South Bristol, ME
- Average sunshine days in May: 14.4 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in May
South Bristol, ME
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
South Bristol, ME
- Average cloud cover in May: 48
The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
South Bristol, ME
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
